Charles bennitt



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CHARLES BENITT, OF BRISTOL STATION, ILLINOIS. I

' Laws Patent No. 84,672, dated December 8, 1868.

MPROVEIEEN T IN SHAFT-COU'PLING.

*QW The Schedule referred to in the'se Letters Patent and making parl: 0f the same.

To all whom it muy concern:

Be it known that I, CHARLES BnNNrr'r, of Bristol Station, in the county of Kendall, and in the State of Illinois, have invented an Improved Coupling for Tumbling-Rods; and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference. being had to the accompanying drawings, and letters marked thereon, making a part of this specification, in which- Figure 1 is a' longitudinal elevation of my invention.

Figure 2, a transverse section of the same.

Figure 3, an elevation of one of the rods detached from the other parts, and showing the jaws which bear against the anti-friction rollers in the coupling-band.-

The nature of the present invention consists in the application of rollers to the inner periphery of' the coupling-band, to relieve the friction of the jaws of the rods.

A material diliiculty has heretofore existed in constructing couplings for the tumbling-rods of threshingmachines, and also for couplings for other rods which run out of line, inasmuch as they are necessarily subjected to great strain, and consequently they soon wear out, there being a compound motion and corresponding friction; and

It is the object of this invention to obviate this objection at small cost, and, at the same time, provide a coupling which will, with reasonable care, wear as long as other working-parts of the machinery to which it is attached. v

To enable others to fully comprehend the construction of my invention, I have marked corresponding parts of the same with similar letters, and will now give a detailed description.

B B represent the ordinary tumbling-rods, which are made of iron or other s .itable metal, and they terminate, at the ends to beV coupled, in jaws, C C and D.D,'

v on which the conicalirollers are made to turn,the bases oft said rollers being convex, to correspond with the form of that portion of the band' against which they bear. f

A spool or washer, F, is also put on the journal G, to hold the rollers in placez; but, if desirable, the rollers E may be cast long enough to meet at the centre of the journal, and thus do away with the spool, the cost, in either case, being about the same; but the rollers, as shown, will operate with the least friction, as their bearings are shorter. The journal G may be quite small, as the jaws C D bear equally on the opposite parts of the rollers E, and consequently there is but little strain on any part of the coupling.

The rods B B should be adjusted in the bearings A,

so as to leave a little space between the band and the shoulders, Z Z, of the jaws which hold the band in place.

Having thus .fully described my invention, What I claim, and desire to secure by Letters Patent, is

The combination of the band H, journal G, pulleys E E, jaws G and D, with the rods B B, asy and for the purpose herein specified and shown.

\ CHARLES BENNITT. Witnesses:

Trios. D.. WAYNE, G. E. GORYELL. 

